Euclid, also known as Euclid of Alexandria and the "Father of Geometry", was a Greek mathematician
who lived around 300BC. His book "The Elements" is described as the most successful textbook in the
history of mathematics. In it, the principles of what is now called Euclidean geometry are deduced
from a small set of axioms. Euclid also wrote works on perspective, conic sections, spherical geometry,
and rigor.